The correct answer is A) PWD.
The Public Works Department (PWD) is a government department responsible for the construction and maintenance of roads, bridges, and other public works in Karnataka. The PWD is also responsible for the management of water resources and the development of irrigation systems.
The National Highways Authority of India (NHAI) is a government agency responsible for the construction and maintenance of national highways in India. The NHAI is not responsible for the construction and maintenance of state highways.
The Karnataka Road Development Corporation Limited (KRDCL) is a government-owned company responsible for the development and maintenance of roads in Karnataka. The KRDCL is not responsible for the construction and maintenance of state highways.
The Bangalore Metropolitan Transport Corporation (BMTC) is a government-owned corporation responsible for the public transportation system in Bangalore. The BMTC is not responsible for the construction and maintenance of state highways.